Jen Aniston: I “Run, Work Out” Seven Days a Week

 Mike Marsland/

Jennifer Aniston's best friend of all might be her treadmill.

The actress, 41, is the only 40-plus — or 30-plus! — star to chart on the Women's Health "Best Summer Bodies of 2010" list, and staying in such great shape isn't easy.

PHOTOS: Her amazing bikini body over the years

Read article

"It's simple," she told the Daily Mirror at the London launch of her eponymous perfume in London on Wednesday. "[I] run, work out every day. I do a lot of running — exercise is so important."

The single actress added, "Plus it's all about balance. Work, exercise, diet, you need balance."

PHOTOS: Hollywood's hottest bikini bods

Read article

Aniston suggested that her fame helps keep her motivated, too."I am, perhaps, fortunate in that my career, the public awareness it brings, gives me a certain freedom in this way. But, of course, there are positives and negatives in any career, it's not all going to be perfect."

PHOTOS: Looking back on  her most famous romance

Read article

Indeed, a source on the Hawaiian set of her recently wrapped flick Just Go With It told Us that the 5-foot-6 actress is "very conscious of her body…She's obsessed with staying fit and young…[She] rarely misses a workout."

For access to all our exclusive celebrity videos and interviews – Subscribe on YouTube!